Method of making a foamed core golf club having a core density g

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Composite article making

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264 455, 264 466, 264 54, 264DIG6, B29C 4418

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active

055079857

ABSTRACT:
A wood type metal golf club head having a hollow metal head and the cavity within filled with a thermoplastic material produced from a thermoplastic polymer, filler and chemical blowing agent in a manner so that the material in the cavity has a dense outer skin adjacent the surfaces of the cavity and a cellular central area and the finished product reduces the undesirable metallic sound made during hitting.

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patent: 5348302 (1994-09-01), Sasamoto et al.

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